Non-conducting covering



(NoMode1-.) v 4 J. S. BRIEAN.

. NUN GONDUGTING GOVBRING. y No. 302,823. Patented July 29, 1884.

N. PETERS. Phnmuchngnphuf. wniningmn. 11C.

UNITED STATES PATENT Trice.

.IOSIAH S. BRIEAN, `OF BERLIN, NEV JERSEY, ASSIGNOR OF ONE-HALE T() GEORGE E. VHEELER, OF -WILMIISIG'ION, DELA\VARE.

NON-CONDUCTING COVERING.

SPECIFICATION forming part of Letters Patent No.l 302,823, dated July 29, 1:884.

(No model.)

1'0 all whom t may concern,.-

Be it known that I, JosrAH S. BRIEAN, a citizen of the United States, residing in Berlin, Camden county, New Jersey, have invented 5 certain Improvements in Non -Condueting Coverings, of which the following is a specification.

The object of my invention is to produce a cheap coating which will adhere firmly to the I@ pipe or other object to which it is applied, will not be in jured by the heat to which it is subjected, and will effectually prevent the loss of heat by radiation.

In the accompanying drawings, Figure 1 is i5 a side view oi' a pipe with my improved non.-

conducting covering, and Fig. 2 a sectional plan on the line l 2. Y

` The covering comprises an inner coating, A, applied directly to the pipe, an outer coating,

2o B, and an intermediate spiral wrapping of a strip of textile material, D. The outer coating, B, consists of mica, wood pulp, jute or ilax, and wheat-iniddlings, in about the following proportions: wood pulp, two bushels;

25 mica, one bushel; jute or flax, two quarts; wheatgmiddlings, four` pounds. The inner coating, A, is the same as the outer coating, with the exception that one-half bushel of iiuesoot is substituted for the wheat-middlings. 3o The wood pulp is a cheap base for the composition, and with the mica and wheat-middlings forms a smooth homogeneous composition with good non conducting qualities. The

wheat-middlings comprise about two-thirds C?) iour and one-third (ji) bran, the liour serv- 35 ing, when moistened, to cement the mass together, while the bran, when the compound is dry, forms cells or dead-air spaces throughout the covering. rIhe jute or ilax serves to bind the composition together, and prevents 4o the cracking and breaking oft of the same, which would result il' the compound were in the form of a hard, brittle cement. rIhe use of the soot in the inner coating, A, serves to increase theheat-resisting qualities of the eom- 45 pound, the employment of wheat-midi'llings in this coating being unnecessary, as the coaty ing is protected by the spiral wrapping and outer coating, and hence is not subjected to any rough usage tending to fracture the same. 5o

I claim as my inventionl. A non-conducting covering consisting of wood pulp, mica, iiax or jute, and wheatmiddlings, combined in proportions substantially as set forth. 5 5

2. A non-conducting covering consistingof wood pulp, mica, iiax or jute, and flue-soot, combined in proportions subsi antia-ll y as specified.

In testimony whereof I have signed my name to this specification in the presence of two sub- 6c scribing witnesses.

.IOSIAH S. BRIEAN.

Vitnesses:

HARRY Siui'ru, HENRY I-IowsoN, Jr, 

